I've been a daycare provider for 7 years now. It depends on the kid as to why they are crying. If your child has done this before it's probably okay. How long does she cry after you leave. I've had kids that would cry and the parents would be worried, but as soon as they left it was only seconds and they had stopped crying and were playing.
If your child isn't normally like this, it is always good to make sure everything at daycare is going well. And it could be just the part of you having another baby.
My son did the same thing at church at that age. Whenever his dad took him to his class no crying, but when I took him he would cry.
I probably didn't help, but I know where you are. I would ask how long she cries after you leave the daycare. And I would try to stay at daycare as little has possible when you are leaving her. The longer the parents stays the harder it is for the child.